The Impact of In Ovo Injection of Organic Manganese on Broiler Breeder Hen Egg Hatchability and Progeny Broilers Productivity

Background: The aim of this study was to investigate the impact of in ovo injection of organic manganese (Mn) on the hatching traits and performance of broiler chickens. Methods: A total of ۳۲۰ eggs from the Ross ۳۰۸ strain, with an average weight of ۶۵ g, were used for the experiment. The birds were randomly divided into four groups: four negative control groups (no injection), one positive control group (in ovo injection of ۰.۲۷۲ mL of normal saline solution), Manganese I group (in ovo injection of ۰.۰۱۳ mg of organic Mn), and Manganese II group (in ovo injection of ۰.۰۲۶ mg of organic Mn). Results: The injected treatments showed a significant decrease in the percentage of hatched chicks compared to the negative control group (P < ۰.۰۰۰۱). Furthermore, the in ovo injection of Mn caused a significant increase in the final weight of the birds and their feed consumption (P < ۰.۰۰۰۱). The experimental treatments also affected blood parameters, with blood triglyceride, cholesterol, and lipoproteins levels demonstrating a decrease compared to the negative and positive controls (P < ۰.۰۰۰۱). Conclusion: The in ovo injection of organic Mn showed favorable results in broiler chickens' performance indicators while showing no impact on immune response and microbial population.

کلیدواژه ها:

In ovo injection ، Growth ، Egg ، Breast-hematology ، Intestinal microflora